31302112202123 has 16 divisors (see below), whose sum is σ = 35784132916224. Its totient is φ = 26822664959040.

The previous prime is 31302112202083. The next prime is 31302112202129. The reversal of 31302112202123 is 32120221120313.

It is a cyclic number.

It is not a de Polignac number, because 31302112202123 - 2¹⁰ = 31302112201099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31302112202129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659009711 + ... + 659057207.

It is an arithmetic number, because the mean of its divisors is an integer number (2236508307264).

Almost surely, 2^{31302112202123} is an apocalyptic number.

31302112202123 is a deficient number, since it is larger than the sum of its proper divisors (4482020714101).

31302112202123 is a wasteful number, since it uses less digits than its factorization.

31302112202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72602.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31302112202123 its reverse (32120221120313), we get a palindrome (63422333322436).

The spelling of 31302112202123 in words is "thirty-one trillion, three hundred two billion, one hundred twelve million, two hundred two thousand, one hundred twenty-three".